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side of the door. However, if the electric lock is not energized,
the door frame strike assembly moves and lets you open the
door with moderate force (10 pounds nominal).
If the electric lock is energized, the strike mechanism does not
move and the door does not open easily from the passenger
compartment. To open the door from the passenger
compartment when the mechanical and electric locks are
active, you must pull on the door with enough force to shear the
strike lock mechanism (250 pounds nominal).
DOORS - CONTROL CABIN DOOR - INTRODUCTION
EFFECTIVITY
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Blowout Panels and Emergency Exit Panels
There are four blowout panels on the control cabin door. If there
is a rapid depressurization, the blowout panels open into the
control cabin. This equalizes the pressure between the flight
compartment and the passenger compartment. Spring-loaded
latches hold the panels closed until a pressure difference forces
the panels open. The panels can blow open into the flight
compartment. A cable between the top blowout panel and the
door prevents injury to the first observer.
The upper two blowout panels are part of an emergency exit
panel assembly. When you pull on the emergency exit handle,
the upper two blowout panels come out of the door. This gives
the crew a means of emergency exit if the door is blocked or
jammed shut.
View Hole and Lens
The view hole and lens assembly in the door let the flight crew
see the flight compartment entrance area when the door is
closed.
Mirror and Certificate Holders
There is a mirror for flight crew use on the upper door.
Frames with a transparent windows for airplane licences and
certificates are on the upper door.
Door Stop
These are the two types of door stop mechanisms that hold the
door in the open position:
* Elastic bungee that snaps to the forward lavatory module
* Spring-loaded plunger with a padded foot and a release
lever on the bottom of the door.
DOORS - CONTROL CABIN DOOR - INTRODUCTION
EFFECTIVITY
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DOORS - CONTROL CABIN DOOR - INTRODUCTION
DOORS - CONTROL CABIN DOOR - INTRODUCTION
EFFECTIVITY
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Door System
The flight compartment door provides selective entry to the
flight compartment.
Access is provided by the use of a Keypad Access System
which consists of a numeric keypad outside the flight
compartment area and a chime module and electric strike
that is not accessible from outside the flight compartment.
The chime module provides an audible alert to the flight crew
that the correct code has been entered into the keypad. There is
also an indicator light in the flight compartment and an LED on
the keypad that indicates that the correct code has been
entered.
The flight crew has a 3-position switch by which they can open
the door lock, close the door lock, or permanently lock the door
for a specified amount of time to prevent access by anyone
regardless if the correct code is entered into the keypad.
The door has blowout panels that will open in the event of a
rapid decompression of the passenger compartment.
The door also has a deadbolt so you can lock the door on the
ground while the airplane is parked.
All access to system door control/wiring is protected such that
they cannot be reached from outside the flight deck area, even
after forced removal of the numeric keypad.
The door latch solenoid controls the electric strike.
DOORS - CONTROL CABIN DOOR - INTRODUCTION
EFFECTIVITY
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DOORS - CONTROL CABIN DOOR - INTRODUCTION
DOORS - CONTROL CABIN DOOR - INTRODUCTION
EFFECTIVITY
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737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
　
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